The C. elegans roundworm is one of the most important model organisms in biology. I have to specify "roundworm", because, well... https://en.wikipedia.org/wiki

The C. elegans roundworm is one of the most important model organisms in biology. I have to specify "roundworm", because, well... https://en.wikipedia.org/wiki/C._elegans_(disambiguation) https://en.wikipedia.org/wiki/C._elegans_(disambiguation)